Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1365d8007afb3d…

MALICIOUS

PDF

76.5 KB Created: 2021-02-14 16:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3b6b771fc77584be37c71ae08216c480 SHA-1: 675e748653657f1d8378e3b3f300f279b6f24680 SHA-256: dc1365d8007afb3de8bb0bc99aee9c2c9019f5f64f73a53ef2df5308660c36cb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/aws?utm_term=multiplying+proper+and+improper+fractions+worksheet PDF link annotation
    • http://artistichomesolutions.com/vatifexogumss10.pdfIn PDF document text
    • https://cdn.sqhk.co/vatepasoxi/ijjhhjw/vusujafupovojeb.pdfIn PDF document text
    • http://bilkaita.space/30893277262eo215.pdfIn PDF document text
    • http://optamorem.com/the_story_of_civilizationjpg4v.pdfIn PDF document text
    • http://24goodstore.site/whirlpool_microwave_manual_wmh31017hz17pjt.pdfIn PDF document text
    • http://lienforkid.com/extra_bass_bollywood_songs45c9b.pdfIn PDF document text
    • https://cdn.sqhk.co/bevizewo/gdgh0if/best_country_songs_of_all_time_download.pdfIn PDF document text
    • http://summer-italy.fun/gipsy_kings_hotel_california_guitar_pro80z9m.pdfIn PDF document text
    • http://idealslimitaly.site/a_hat_in_time_why_achievement9n7kf.pdfIn PDF document text
    • http://womenit.space/bubble_gum_simulator_script_gui_20203w1ck.pdfIn PDF document text
    • https://cdn.sqhk.co/wepuvumug/ibxhagc/51308456976.pdfIn PDF document text
    • http://alex-chekalev.com/99681681632kp8iz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zasepo/96782245095.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/equality_and_diversity_policy_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/san_antonio_weather_report_today.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ede1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE1 5832 bytes
SHA-256: 7e624a0dcf0cf643e5283eab0d2d524ec9f45cb8979c7055f275bf0bbf154385
font_01_sfnt_off000101b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B7 10244 bytes
SHA-256: 2bfcc8028859d80c3b80e5144799b8983a07ad297e2197d78fa37fd5f455775a